package com.lin.interceptor;

import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

public class Logininterceptor implements HandlerInterceptor {
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        System.out.println("uri:"+request.getRequestURI());
        if(request.getRequestURI().contains("book/allBook")){
            return true;
        }
        if(request.getRequestURI().contains("/book/login")){
            return true;
        }
        if(request.getRequestURI().contains("/book/jumplogin")){
            return true;
        }
        HttpSession session = request.getSession();
        if(session.getAttribute("user")!=null){
            return true;
        }
        request.getRequestDispatcher("/WEB-INF/jsp/login.jsp").forward(request,response);
        return false;
    }
    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {

    }

    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {

    }
}

